New Questions

Interview Questions :: Electrical EngineeringPosted By : jinboll


:Q: How does frequency affect KVA rating of a transformer? If a 500 kva, 500 to 250 v, 60 hz t/f used in Canada is to be operated on 50 hz in Europe frequency then how will its KVA rating change? a-increase b-decrease c-remains same


Interview Questions :: Electrical EngineeringPosted By : jinboll


:Q: How does frequency affect KVA rating of a transformer? If a 500 kva, 500 to 250 v, 60 hz t/f normally used in Canada is to be operated in Europe on 50 hz frequency then how will its KVA rating change? a-increase b-decrease c-remains same


Interview Questions :: Electrical EngineeringPosted By : rajana lokesh


:Q: The inventer is a battery, but if lost current at home u will turn on the fan but the is AC and inventer battery is dc . Then how the fan was rotating. What device Or machine in fan converst the Dc power to Ac power


Interview Questions :: Electrical EngineeringPosted By : manojkumar


:Q: What kind of socket shall be provided for window type air conditioner with cooling capacity upto 18000 BTU/hr


Interview Questions :: Electrical EngineeringPosted By : krishna prabhu


:Q: Electronic circuit


Interview Questions :: Mechanical EngineeringPosted By : venkatesh


:Q: MEIL Company written test questions


Interview Questions :: SAP SD (Sales & Distribution)Posted By : anusha


:Q: can any one give one scenario of change request


Interview Questions :: SAP SD (Sales & Distribution)Posted By : kirti


:Q: Which type of aptitude question


Interview Questions :: Ab InitioPosted By : abhib123


:Q: What happens when we provide null key to sort, merge and pbks in Abinitio ?


Interview Questions :: Ab InitioPosted By : abhib123


:Q: How can we increase the loading performance of oracle table in AbInitio?


Interview Questions :: Ab InitioPosted By : abhib123


:Q: What is the return type of lookup_not_loaded() ? Does it return 0 or 1 to signify true or false or does it return index ...can someone please explain.


Interview Questions :: Ab InitioPosted By : abhib123


:Q: Whenever we load data into oracle table from staging table using exchange partition...then I read somewhere that data actually doesn't move in this and this command only reset the pointer in the data dictionary...so if data doesn't move then how data is loaded into the main table ? I mean wat is the point of pointer update in data dictionary?


Interview Questions :: Ab InitioPosted By : abhib123


:Q: Can some tell me at which level pdl gets resolved when parameters are resolved in abinitio? Also what happens in dml evaluation during parameter evaluation ?


Interview Questions :: Ab InitioPosted By : abhib123


:Q: Can someone tell me the behaviour of next_in_sequence() and innovation_number() in a multifile. Suppose I have records 1,1,1,2,2,3,4,4 in a 4ways mfs file. Data in each partition is: 0th : 1,1,1 1st : 2,2 3rd : 3 4th : 4,4 What will be the sequence of these records if I pass next_in_sequence() and innovation_number() ? Also how can I extract 3rd record from each of the 4 partitions of a 4way multifile through AbInitio? In unix we can use m_dump


Interview Questions :: Organic ChemistryPosted By : prashant


:Q: HPLC in sequences analysis was taken wrong method and one blank & Standard is running so what to do


New Answers

Interview Questions :: Electrical Engineering Posted By : sn vijayarajan


:Q: Why transformer is not rotating?

A :: AC electrical system is represented by two types of vectors. Time phase vector (sinusoidal wave) and space phase vector (windings are kept apart at a certain physical distance. These two vectors are needed to generate a rotating magnetic field and a rotary motion. An induction motor has these two and hence it rotates. But in transformer, it has only time phase vector and it does not rotate.


Interview Questions :: STL Posted By : manasa bugude


:Q: Write a program to print the swapping in two no and using three variable.

A :: import java.util.Scanner; public class SwappMethod { public static void main(String[] args) { int a,b,c,d; Scanner scn=new Scanner(System.in); System.out.println("enter the value of a,b and c"); a=scn.nextInt(); b=scn.nextInt(); c=scn.nextInt(); System.out.println("before swapping numbers:"+a+" "+b+" "+c); d=a; a=b; b=c; c=d; System.out.println("after swapping number:"+a+" "+b+" "+c); System.out.println(); } }


Interview Questions :: SAP FI-CO (Financial Accounting & Controlling) Posted By : seetaram bandla


:Q: Can we change the reconciliation account in the vendor master?

A :: Before we can change the recon account it should be zero balance otherwise we can't change the recon account.


Interview Questions :: Electrical Engineering Posted By : jinboll


:Q: How does frequency affect KVA rating of a transformer? If a 500 kva, 500 to 250 v, 60 hz t/f used in Canada is to be operated on 50 hz in Europe frequency then how will its KVA rating change? a-increase b-decrease c-remains same

A :: The transformer EMF equation shows that the EMF induced in the secondary or the primary side of a transformer is directly proportional to the product of the flux (Φm) through the transformer core and the frequency. This leads to the flux is proportional to E/f. For example, the kVA rating of the 500v to 250v 60 Hz transformer will be smaller when used in Europe with a frequency of 50Hz. 500/60 = E/50 E is smaller than 500v on primary side. 250/60 = E/50, E is smaller than 250v on secondary side


Interview Questions :: Electrical Engineering Posted By : jinboll


:Q: How does frequency affect KVA rating of a transformer? If a 500 kva, 500 to 250 v, 60 hz t/f normally used in Canada is to be operated in Europe on 50 hz frequency then how will its KVA rating change? a-increase b-decrease c-remains same

A :: The transformer EMF equation shows that the EMF induced in the secondary or the primary side of a transformer is directly proportional to the product of the flux (Φm) through the transformer core and the frequency. This leads to the flux is proportional to E/f. For example, the kVA rating of the 500v to 250v 60 Hz transformer will be smaller when used in Europe with a frequency of 50Hz. 500/60 = E/50 E is smaller than 500v on primary side. 250/60 = E/50, E is smaller than 250v on secondary side.


Interview Questions :: Electrical Engineering Posted By : jinboll


:Q: How does frequency affect KVA rating of a transformer? If a 500 kva, 400 v, 60 hz t/f is to be operated on 50 hz frequency then how will its KVA rating change? a-increase b-decrease c-remains same Also explain why do u think like that.

A :: The transformer EMF equation shows that the EMF induced in the secondary or the primary side of a transformer is directly proportional to the product of the flux (Φm) through the transformer core and the frequency. This leads to the flux is proportional to E/f. For example, the kVA rating of the 500v to 250v 60 Hz transformer will be smaller when used in Europe with a frequency of 50Hz. 500/60 = E/50, E is smaller than 500v on primary side. 250/60 = E/50, E is smaller than 250v on secondary side.


Interview Questions :: Electrical Engineering Posted By : cameron hunter


:Q: How does frequency affect KVA rating of a transformer? If a 500 kva, 400 v, 60 hz t/f is to be operated on 50 hz frequency then how will its KVA rating change? a-increase b-decrease c-remains same Also explain why do u think like that.

A :: The transformer EMF relation shows that the EMF induced in the secondary or the primary side of a transformer is directly proportional to the product of the flux (Φm) and the frequency. This also means that the flux is proportional to EMF over frequency. As an example, for the 500V to 250V transformer, the kVA rating under 60Hz transformer will be smaller than 50Hz. 500/60 = V/50. V has to be smaller to keep consistency.


Interview Questions :: Chemistry AllOther Posted By : bhavana


:Q: Bolt and nut made of the same metal is preferred in practice. Why? : Electrochemistry Corrosion

A :: Bolts and Nuts are made up of same metal because they have same strength and stress resistance.


Interview Questions :: Civil Engineering Posted By : shadav ali


:Q: What are the functions of a column in a building?

A :: A column or pillar in architecture and structural engineering is a structural element that transmits, through compression, the weight of the structure above to other structural elements below. ... For the purpose of wind or earthquake engineering, columns may be designed to resist lateral forces.


Interview Questions :: Civil Engineering Posted By : venkatesh


:Q: What is full form of r.c.c?

A :: R.C.C-Reinforced Cement Concrete






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